Though the Buick ad did not include dealership addresses, this is a nice shot of Beverly Buick which I found here. The building still exists, at least.
A 1955 Buick promo model from my collection. Models like these were often given to the customers' children as well as
very graphically showing the various color combinations. The
dealership models did not have friction motors. The versions with them
were sold in toy stores and hobby shops across the country. I wanted
all of them.